#303FC5#303FC5

#303FC5 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.1% C 0.206 H 270.3°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#303FC5
RGB	rgb(48, 63, 197)
HSL	hsl(234, 61%, 48%)
HSV	hsv(234, 76%, 77%)
CMYK	cmyk(75.6%, 68%, 0%, 22.7%)
CIE-LAB	lab(34.42, 40.74, -71.09)
CIE-LCH	lch(34.42, 81.94, 299.82°)
OKLab	oklab(45.12% 0.0012 -0.2057)
OKLCH	oklch(45.12% 0.206 270.3)
XYZ	xyz(13.0710, 8.2132, 53.7089)
Luminance	0.0822 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303FC5 #C5B630

analogous

#3089C5 #303FC5 #6C30C5

triadic

#303FC5 #C5303F #3FC530

tetradic

#303FC5 #C53089 #C5B630 #30C56C

square

#303FC5 #C53089 #C5B630 #30C56C

split-complementary

#303FC5 #C56C30 #89C530

monochromatic

#182063 #242F94 #303FC5 #5B68D7 #8C95E3

Accessibility & contrast

On white

7.95

#303FC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#303FC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303FC5

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303FC5	#FFFFFF	#000000	##FFFFFF
##303FC5	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C9

Deuteranopia (green-blind)

#004AC3

Tritanopia (blue-blind)

#00647D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #303fc5;
/* rgb */ color: rgb(48, 63, 197);
/* oklch */ color: oklch(45.1% 0.206 270.3);

Tailwind

colors: {
  custom: {
    50: '#8074d8',
    500: '#303fc5',
    950: '#000000',
  },
}

SCSS

$custom: #303fc5;
$custom-light: #8074d8;
$custom-dark: #000000;

JSON

{
  "hex": "#303fc5",
  "rgb": {
    "r": 48,
    "g": 63,
    "b": 197
  },
  "hsl": {
    "h": 233.96,
    "s": 60.816,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45124,
    "c": 0.20573,
    "h": 270.3
  },
  "luminance": 0.08215
}

Semantic roles & 50–950 ramp

primary

#303FC5

secondary

#CDC684

accent

#D444E4

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #303FC5

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →